Flash-lamp.



PATENT OFFICE.

. JULES CQURTIER, or PARI FRANCE.

FLASH-LAMP srscxrxoanon forming part l'oall whom it may concern: Y

Be it known that I, JULES COURTIER, 'acii izen of theRepublic of France, and a resident of Paris, France, have invented certain new and useful Improvements injFlash-Lan ps, of which the following is a specification.

' Mypresent-invention relatestoanimproved apparatus for producing? flashes by the electric evaporation go'f thin wires'w forphgtm j graphic purposes; tandit-consists in the construction, 'novel. combination, and arrangementof parts fully described andclaimed hereinafter with reference to the accom pany ing drawings, whereininafter described. The apparatus shown in Figs. 1 and 2 is arvation of same with parts shown in Figs. 3and 4'illustrate an apparatus arranged for producing less intensive'flashes.

Figure 1 is a'front view of an apparatus embodying my invention. Fig. 2 is side elesection.

flashes. Fligs ti and Tare. modifications hereranged forproducing very intensiveflashes.

Said apparatus comprises-a boarda' having a suitable aperture a, (preferably rectangu- Ilar,) limited by means-of two current-conducting surfaces b and 0 (preferably made of car- Don) and insulated from each other. One of said surfaces is connected to the negative ter-.

minal, the other surface being connected to the positive terminal very fine or thin wired in'contact withthe surface 2) is brought in contact with the surface 0, the electric circuit will be closed and said wire is instantaneously vaporized, the force of the current being suflicieutly strong to attain this result. The aforesaid-aperture is located in front of rollers fiadapted to feed one or more thin wires d from rollers g to oneed'ge and then to the other edge of said aper ture a. Said rollers f may be also employed for rolling thicker wires bymeans of asuitphle tightening device. (Not'showm) The electric aperture, the metal wires, and the wire rolling and feed rollers form the essenzial parts of the phlogostomefi? Other seemdary devices-such as switches, safety cutmt, rheostat, wire-guides, &c. -may'be pro-- ided for obtaining a perfect andregular opration; The phlogostome may be actuatedy means of a crank, a clockwork, or-a me Fig. 5.v shows a'modificationfor" producing-very short of a circuit. When ainto contact biped (No model.)

of wires, the section of same, the metal to be It employed, and the length of said wires. will be readily understood that the shape of the ing outdeparting from the scope of the invention.

In Figs. 3 and 4 I have shown a modification arranged for producing successive flashes of less intensity. The apparatus comprises a roller the-'endsof disks h, the body z'of. less diameterbeing made of insulating and non-inflammable material. Thus the metaldisks h are insulated from. each other. nected to the negative terminal of a circuit, the other disk, being connected to the positive terminal of said circuit. Said roller is frictionally' engaged with a lower roller j, made of insulating material. rollers is. inserted a band or strip 16, preferably'made of asbestos cloth, upon which are secured wires m at equal intervals and extending at right angles withthe longitudinal sides of the band, the ends of said wires coming successively" into contact with the metal disks h of the aforesaid roller. When one of the wires is closedand the wire is instantaneously vaporized. The handle being continuously fed be tween the rollers another 'wireis brought with said disks and vaporized, and so on. tested as desired and advantageously cornth a kinetoscope, so as to produce flashes y means of one or more wires when theshutter uncovers a portion of the band to be exposed. I

When it is desired to produce short flashes, I employ the modification shown in Fig. '5 and comprising ametal current-conducting flash will be.

said aperture a and the means for feed-- the wires may be modified as desired with- This apparatus may also be no intensive practi- The intensity, actinwhich are formed Ofmet-al 'Oneof said 'disks is con- Between said making the supportsq'of \vhenithe ends of a wire 4*,

. the uprights q and projecting slightly'thereroller a, over iwhich is fitted a cylindrical I claim, and desire to secure sleeve 0,- made-of metal. Upon the periphery of said sleeve are secured radial fusible wires The journals of the rollern are connected to one of the terminals of the circuit and the roller is rotated in any convenient manner.

As the roller n is" rotated. the fusible =wires p are successively brought intocontact with a metal blade 10f, connected to theother termi:

nal of the. circuit, whereby the latter is successively closed to vaporize the Wires.

Another modification, Fig.6, consists in insulating material and of the form of a ladder, the ,wires 4*, ex-

tending' transversely ,thereto,'form ing' the steps. Two insulating cross-bars q are provided to hold the uprights q in proper relative position. Said uprights q are arranged in vertical guideways s, respectively connect ed toitheterminals of a suitable circuit, and

extending through from, are simultaneously brought into contact with the guideways s the circuit is closed and the fusible .wire instantaneously vaporized.

' Another adaptedatoproduce agsingle very intensive harsh for instantaneous photography. The

apparatus comprises two metal standards t, secured on an insulating-support and respec-. tively connected toth'e terminals of a suitable circuit. A-s'uitable Witcl5f 11,, inserted between one of said-standards andthe corre-' spondingterminal of the circuit, isprovided for closing-the latterat e desired moment. To the-standardst aresec red,

circuit iBtGlOSQd;

.pendently of each other and suitable electric circu with the said disks to modification (shown in,Fig;'7-)Jis means for feeding with said metal disks.

my hand in. 're sence transversely, fusible wires '0, which :areivapm'iztitwhcnthe invention, what; by Letters Pat,-

Having fully described my cut, is-

1. In an apparatus of the character set forth,

the combination with of metalparts mounted upon the same inderespectively connected to the terminals of a suitable electric circuit, fusible wires into contact with said metal parts, and'means for bringing said wires one at a time, and suc-, cessively into contact with the metal. parts,

an insulating-support,

adapted to be brought substantially as and for the purpose set forth."

the combination with an insulating-support; of metal disks onthe endsof the-same and respectively connected to the terminals of a V 2. 1mm apparatus of thecharacterset forth,

it,of-an insulating-roller arranged contiguous to said disks, an insulating band adapted to.

said disks and rollerand be fed thereby, and

adapted to come; nto

the purpose set forth;

3.1 The combinationwith a revoluble insulating-suppo'rt, and metal disks on the'ends (of the same and respectively connected to the terminals of a suitable electric circuit, of

fusible wires' into contact I .In' testimony whereof ot' two witnesses. I u JULES-COURTIERL Witnesses: I ADoLPnE-S'rURM;

- EDWAR 'P. MACLEAN.

I have hereunto set pass intermediate the fusiblextires carried-bythe said band and contact one at a" time complete the electric '3 circuit and be fused in the manner and for" a 

